/Engine/Source/Developer/DerivedDataCache/Public/DerivedDataBuildSession.h
The callback will always be called, and may be called from an arbitrary thread.
void Build ( const [FBuildDefinition](API\Developer\DerivedDataCache\FBuildDefinition) & Definition, const [FOptionalBuildInputs](API\Developer\DerivedDataCache\FOptionalBuildInputs) & Inputs, const [FBuildPolicy](API\Developer\DerivedDataCache\FBuildPolicy) & Policy, [IRequestOwner](API\Developer\DerivedDataCache\IRequestOwner) & Owner, [FOnBuildComplete](API\Developer\DerivedDataCache\FOnBuildComplete) && OnComplete )